| 高功率激光器喷雾冷却的实验研究 |
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| 引用本文： | 王亚青,刘明侯,刘东,徐侃.高功率激光器喷雾冷却的实验研究[J].强激光与粒子束,2009,21(12). |
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| 作者姓名： | 王亚青 刘明侯 刘东 徐侃 |
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| 作者单位： | 中国科学技术大学 热科学与能源工程系， 合肥 230027 |
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| 摘 要： | 以水为冷却介质，采用Spray公司的TG0.3机械雾化实心圆锥喷嘴，在体积通量为0.044，0.049和0.053 m3/(m2·s)情况下，对刻有不同微结构槽道冷却面的无沸腾区换热性能进行实验研究。结果表明：刻有微结构的表面可明显增强换热效果；壁面刻有高为0.2 mm的微结构槽道且壁面温度为52 ℃时，体积通量为0.044 m3/(m2·s则热流可达260 W/cm2，通量为0.053 m3/(m2·s则散热功率高达376 W/cm2，完全可以满足当前高功率激光器的散热需求。对于光滑面以及槽肋高为0.1和0.2 mm的换热面，其换热能力随着体积通量的增加而增强；换热面高度为0.4 mm时，通量对换热的影响变得较微弱。微结构槽道不仅增加了换热面积，还有利于液膜扩散，减小液膜厚度，增强换热。在三种不同的流量通量下，高度为0.2 mm的微结构槽道换热性能最佳。
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| 关 键 词： | 喷雾冷却 微结构换热面 无沸腾区 槽肋高度 |
| 收稿时间： | 1900-01-01; |
Experimental study on spray cooling for high-power laser |
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| Wang Yaqing,Liu Minghou,Liu Dong,Xu Kan.Experimental study on spray cooling for high-power laser[J].High Power Laser and Particle Beams,2009,21(12). |
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| Authors: | Wang Yaqing Liu Minghou Liu Dong Xu Kan |
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| Institution: | Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | Using water as coolant, TG0.3 full-cone nozzles supplied by Spraying Systems Co. are applied to study heat transfer performance of micro-channel surface in non-boiling regime of spray cooling when volumetric flux ranges from 0.044 m3/(m2·s to 0.053 m3/(m2·s. The results indicate that heat transfer is obviously enhanced for micro-channel surfaces relative to the flat surface. It is found that when the wall temperature is 52 ℃ and the volumetric flux is 0.044 m3/(m2·s, the heat flux dissipated on micro-channel surface, whose fin height is 0.2 mm, could reach 260 W/cm2; when the volumetric flux increases to 0.053 m3/(m2·s, the heat flux could reach 376 W/cm2 at the same surface temperature. For the sm |
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| Keywords: | spray cooling enhanced surface non-boiling regime fin height |
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